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A collection of boolean logic tools

Project Description

electruth is a collection of boolean logic tools. It can be used as both a command-line tool and a Python library. It understands boolean algebra (to some extent) and can be used to simplify boolean expressions using the Quine-McClusky method. This can be useful if you have a truth table in need of basic shortening. electruth can also be used to compare boolean expressions, which can be very useful if you need to compare a truth table with a schematic you created based on that truth table. electruth can also be used to transform complex boolean expressions into simpler ones consisting only of ANDS, ORS and NOTS.


electruth is free software under the terms of the GNU General Public License version 3 (or any later version). The author of electruth is Niels Serup, contactable at This is version 0.2.0 of the program, the first version to support Python 3.1+ (if you need support for Python 2.6+, you should download v0.1.1).

The libraries used by electruth are GPL-compatible.


Way #1

Just run this (requires that you have python-setuptools installed):

$ sudo easy_install3 electruth

Way #2

Get the newest version of electruth at or at

Extract the downloaded file and run this in a terminal:

# python3 install


Python 3.1+ is a requirement.


Note that qvikconfig is included with electruth, so you don’t really have to install it.

Optional extras

If present, electruth will also use these Python modules:


Note that termcolor is included with electruth, so you don’t really have to install it.



Installing electruth installs a command-line utility named electruth. This program has many settings, and it’s recommended to run electruth --help to get an overview of them.

The program creates boolean expressions from whatever input you give it. If you give it more than one input, it will compare the two inputs (unless if you tell it not to do that). Many inputs are supported:

  • Basic boolean expressions (e.g. A and (B or C) or A * (B + C) (the same))
  • Truthtables, using tab-separated (.tsv) or comma-separated (.csv) values in a file, the first row specifying the names of the inputs and outputs with a < prefix for inputs and a > prefix for outputs.
  • Netlists (.net), e.g. those generated from gnetlist from the gEDA project (gEDA schematics from gschem can also be loaded, but they will be converted to netlists (saved in temporary files) at first).

Some settings can also be set in a config file. Config files use a property = value syntax (e.g. auto compare = false) separated by newlines.

To see the help for electruth, run:

pydoc3 electruth

And especially:

pydoc3 electruth.booleanexpression
pydoc3 electruth.netlist
pydoc3 electruth.truthtable


electruth is written in Python and uses Git for code management. To get the latest branch, download it from like this:

$ git clone git://

This document

Copyright (C) 2010, 2011 Niels Serup

Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved. This file is offered as-is, without any warranty.

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